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Which apps work on the iPhone Duo

6,561 apps, checked against Apple's App Store data every day. Hand tests on a real Duo, posture by posture, come next.

Postures

1,685 apps · Letterboxed

  1. Penny FinderRingtones LLCShoppingLetterboxed
  2. Pocket GodBolt CreativeEntertainmentLetterboxed
  3. Slay the SpireBalor GamesGamesLetterboxed
  4. TeleGuardSwisscows AGSocial NetworkingLetterboxed
  5. The Game of Life 2Marmalade Game StudioGamesLetterboxed
  6. القاعدة النورانيةFurqan Group for Education& ITBookLetterboxed
  7. 哔咔漫岛-二次元日韩耽美漫画大全wuhanmanciyuanBookLetterboxed
  8. Backyard Baseball '01Playground Productions LLCGamesLetterboxed
  9. Bartender's Choice Vol.3Fancy Free LLCFood & DrinkLetterboxed
  10. Catan ClassicUSMGamesLetterboxed
  11. CloverPitFuture Friends GamesGamesLetterboxed
  12. Emoticons Keyboard Pro建钧 黎ShoppingLetterboxed
  13. Five Nights at Freddy'sCLICKTEAM LLC USAGamesLetterboxed
  14. FreeFlixabdessamad moukarrameMagazines & NewspapersLetterboxed
  15. Imposter GameSven VucakGamesLetterboxed
  16. MotoJitsuGregory WidmarBookLetterboxed
  17. My Singing Monsters ComposerBig Blue BubbleGamesLetterboxed
  18. OBD FusionOCTech, LLCTravelLetterboxed
  19. QZ FitnessRoberto ViolaSportsLetterboxed
  20. Sale Price + Tax CalculatorJacob HazelgroveShoppingLetterboxed
  21. Teach MonsterTeach Your MonsterBookLetterboxed
  22. Where's My Water?DisneyGamesLetterboxed
  23. Woodworking Crafts MagazineGuild of Master Craftsman Publications LtdReferenceLetterboxed
  24. Animal CrossingNintendo Co., Ltd.GamesLetterboxed
  25. Baby's Heartbeat BackupMy Baby's Heartbeat BearShoppingLetterboxed
  26. Bow Hunt SimulatorKristian StensoenesSportsLetterboxed
  27. BuycottBuycott Inc.ShoppingLetterboxed
  28. J23Plan23, LLCSportsLetterboxed
  29. Manager for ScootersRadoslaw MarciniakTravelLetterboxed
  30. Marine Aquarium 2.6Prolific Publishing, Inc.EntertainmentLetterboxed

Automatic check, daily · updated

As of Nov 10, 2026, 27 of the top 100 free iPhone apps have Apple's iPhone Duo badge. The status of every app here comes from Apple's App Store data, read again every day. How an app behaves in laptop, book or tent mode takes a hand test on a real Duo; none has been tested yet. How we test